Finding the Fourth Proportional to 77,190.94, 106,523.49 and 41,862.94
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Solution
The fourth proportional to 77,190.94, 106,523.49 and 41,862.94 is: 57,770.85
Step by Step Solution
- Step 1: Write the proportion equation
77,190.94 : 106,523.49 = 41,862.94 : x - Step 2: Convert to fraction form
77,190.94/106,523.49 = 41,862.94/x - Step 3: Cross multiply
77,190.94x = 106,523.49 × 41,862.94 - Step 4: Simplify right side
77,190.94x = 4,459,386,361.14 - Step 5: Solve for x
x = 4,459,386,361.14/77,190.94 - Step 6: Final answer
x = 57,770.85
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.